Patent Application
20240034020
This application claims the priority benefit of China application serial no. 202210907166.6, filed on Jul. 29, 2022. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The present invention relates to the field of paper nut processing, and in particular to a production process for a paper nut.
Nuts are also called screw nuts. Generally, there are many kinds of nuts, such as hexagonal nuts, round nuts, square nuts and plastic nuts. Nuts have stronger adaptabilities and meet requirements of thread sizes of male parts, so they can all be used. It can be seen that nuts are used more widely than traditional anchor bolts. The installation of nuts is simpler. Previous traditional anchor bolts were relatively complicated in installation processes, but now installation processes of nuts are relatively simple, which brings convenience to many users and reduces the problems encountered in installation of nuts. We do not need to worry about the following situation: the traditional anchor bolts will tilt when drilling. We can directly drill holes in the case of installing nuts, and then install the nuts. By doing this, the success rate can reach nearly 100%. The design of the nuts is novel, which greatly improves the aesthetics of the nuts. There is no trouble when the nuts are not in use, and threads on the nuts can ensure that the utilization degree of screws is greatly improved during installation.
In order to ensure that an inner wall or outer wall of each nut is provided with threads, people can only select plastic or metal with a certain hardness as the raw material of the nut, and use a nut mechanism to thread the plastic or metal raw material.
However, selecting plastic or metal as the raw material of nuts increases the manufacturing cost of the nuts and cannot meet the requirements of modern society for environmental protection of packaging materials, and also, there is currently no process that can make internal or external threads on paper tubes to realize paper nuts.
The object of the present invention is to provide a production process for a paper nut, in order to solve the above problems proposed in the background art that selecting plastic or metal as the raw material of nuts increases the manufacturing cost of the nuts and cannot meet the requirements of modern society for environmental protection of packaging materials, and also, there is currently no process that can make internal or external threads on paper tubes to realize paper nuts.
To achieve the above object, the present invention provides the following technical solution: a production process for a paper nut, which includes the following steps:
As a preferred technical solution of the present invention, the paper tube in step 2 is cylindrical, and the nut needs to rotate along a bolt during tightening. This requires that during the rotation of the nut along a center line of the bolt, the mutual contact area and contact force should be consistent, so as to prevent the threads of the bolt or the nut from being damaged. Therefore, the inner wall of the manufactured nut must be cylindrical.
As a preferred technical solution of the present invention, in step 4, the first paper strip is wound equidistantly and obliquely around the paper tube clockwise or counterclockwise, and the number of turns of the first paper strip is greater than or equal to the number of required threads.
As a preferred technical solution of the present invention, in step 5, with regard to the second paper strip with the appropriate width, the width of the second paper strip is greater than the width of the first paper strip, such that the second paper strip wound around in one turn can wrap the first paper strip wound around the paper tube in multiple turns.
As a preferred technical solution of the present invention, in step 6, the second paper strip is wound around the paper tube clockwise or counterclockwise after covering the first paper strip, in which the second paper strip is wound in at least two layers in a staggered manner.
As a preferred technical solution of the present invention, in step 8, with regard to the third paper strip with the appropriate width, the width of the third paper strip is greater than the width of the second paper strip, such that the third paper strip wound around in one turn can wrap the second paper strip wound around the paper tube in multiple turns.
As a preferred technical solution of the present invention, in step 9, the third paper strip is wound around the paper tube clockwise or counterclockwise after covering the second paper strip, in which the third paper strip is wound in at least two layers in a staggered manner.
Compared with the prior art, the beneficial effects of the present invention are as follows:
The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention; and obviously, the embodiments described are merely some, rather than all, of the embodiments of the present invention. On the basis of the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.
The present invention provides a production process for a paper nut, which including the following steps:
The paper tube in step 2 is cylindrical, and the nut needs to rotate along a bolt during tightening. This requires that during the rotation of the nut along a center line of the bolt, the mutual contact area and contact force should be consistent, so as to prevent the threads of the bolt or the nut from being damaged. Therefore, the inner wall of the manufactured nut must be cylindrical.
In step 4, the first paper strip is wound equidistantly and obliquely around the paper tube
clockwise or counterclockwise, and the number of turns of the first paper strip is greater than or equal to the number of required threads.
In step 5, with regard to the second paper strip with the appropriate width, the width of the second paper strip is greater than the width of the first paper strip, such that the second paper strip wound around in one turn can wrap the first paper strip wound around the paper tube in multiple turns.
In step 6, the second paper strip is wound around the paper tube clockwise or counterclockwise after covering the first paper strip, in which the second paper strip is wound in at least two layers in a staggered manner.
In step 8, with regard to the third paper strip with the appropriate width, the width of the third paper strip is greater than the width of the second paper strip, such that the third paper strip wound around in one turn can wrap the second paper strip wound around the paper tube in multiple turns.
In step 9, the third paper strip is wound around the paper tube clockwise or counterclockwise after covering the second paper strip, in which the third paper strip is wound in at least two layers in a staggered manner.
When the present invention is used: in the case of manufacturing a nut with internal threads, an operator should clearly know a diameter of a nut to be manufactured before manufacturing the nut, for example, manufacturing a nut with a diameter of 5.82 mm, 8 mm, or the like, and prepare a cylindrical paper tube with the same diameter as the nut to be manufactured as a mold for determining an inner diameter of the nut. The nut needs to rotate along a bolt during tightening. This requires that during the rotation of the nut along a center line of the bolt, the mutual contact area and contact force should be consistent, so as to prevent the threads of the bolt or the nut from being damaged. Therefore, the inner wall of the manufactured nut must be cylindrical. The operator selects a first paper strip with an appropriate width that can be wound around the paper tube in multiple turns of length, and winds the first paper strip equidistantly and obliquely around the paper tube clockwise or counterclockwise with the number of turns of the first paper strip being greater than or equal to the number of required threads, so as to meet the requirement of providing threads on the manufactured nut. The operator selects a second paper strip with an appropriate width that can be wound around the paper tube in two layers of length with the width of the second paper strip being greater than the width of the first paper strip, such that the second paper strip wound around in one turn can wrap the first paper strip wound around the paper tube in multiple turns. The second paper strip is wound around the paper tube clockwise or counterclockwise after covering the first paper strip, in which the second paper strip is wound in at least two layers in a staggered manner. The inner side of the second paper strip is covered with glue, and the second paper strip is pasted and fixed to the outside of the first paper strip with the glue. The operator selects a third paper strip with an appropriate width that can be wound around the paper tube in two layers of length, such that the third paper strip wound around in one turn can wrap the second paper strip wound around the paper tube in multiple turns. The third paper strip is wound around the paper tube clockwise or counterclockwise after covering the second paper strip, in which the third paper strip is wound in at least two layers in a staggered manner. The inner side of the third paper strip is covered with glue, and the third paper strip is pasted and fixed to the outside of the second paper strip with the glue. The operator performs, with a shaping and drying device, drying and shaping on a connection between the first paper strip and the second paper strip, and a connection between the second paper strip and the third paper strip after pasting. The operator slides out a shaped and finished product from the cylindrical paper tube. The operator performs length cutting on the shaped and finished product with a cutting device. Then the manufacturing of the paper nut is completed. In the case of manufacturing a nut with external threads, the operator should clearly know a diameter of a nut to be manufactured before manufacturing the nut. The operator selects a cylindrical paper tube with the same diameter. The operator first winds the third paper strip around the paper tube, then winds the second paper strip, and finally winds the first paper strip. The first paper strip is pasted on the second paper strip with glue, and the second paper strip is pasted on the third paper strip. The operator performs, with the shaping and drying device, drying and shaping on a connection between the first paper strip and the second paper strip, and a connection between the second paper strip and the third paper strip after pasting. The operator slides out a shaped and finished product from the cylindrical paper tube. The operator performs length cutting on the shaped and finished product with the cutting device. Then the manufacturing of the paper nut is completed.
Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solution recorded in the foregoing embodiments may still be modified, or some technical features therein may be equivalently replaced. Any modifications, equivalent replacements, improvements, and the like made within the spirit and principle of the present invention shall be included into the scope of protection of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210907166.6 | Jul 2022 | CN | national |
